Space-band cleaner



' 1. LIST SPACE BAND CLEANER.

APPupATwN FILED JUNE 23.1917.

1,377,357. I I Patnted May10,1921.

314mm wl'oz JOHN LIST.

wi bneoo v UNITED STATES PATENT omits.

JOHN LIST, OF LAKE GEORGE, MICHIGAN.

" sPAoE- BAN D CL ANER.

- To all whom it may concern:

Be it known that I, JOHN Lis'r, a citizen of the United States, residing at Lake George, county of Clare, State of Michigan, have invented a certain new and useful Improvement in Space-Band Cleaners, and.

declare the following to be a full, clear, and

I ers and more particularly to an improve ment on my former. Patent No. 1,181,001, of May2, 1916, and the object of the improvement is to provide an adjustable polishing, roll that is yieldable in character.

These and other objects and the several" novel features of the invention in its preferred form are hereinafter'more fully described and claimed and shown in the accompanying drawings in which- Figure 1 is a plan View showing n1y'improved polishing roll.

F'g. 2is a vertlcalsection thereof.

Fig. 3 is an end View showing the mean of pivoting the severalsectors.

Fig. 4 is a transverse section of a space band. a

This invention is an improvement, as before mentioned,.on my former Patent 'No.

7 1,181,601, entitled Space band cleaner, and

in this invention the machine is practically thesame as in my former patent.

The polishing roll is made up of four sectors pivoted at 100 upon'which they are adapted to swing. As shown more particularly in. Fig. 2 these sectors are formed" with a rounded part 101 which conforms to the face 102 of-the: space band as shown in Fig. A and is adapted to polish the said face. As the polishing roll becomes worn the sectors thereof can be moved outwardly by retracting the. screws 103. slightly from the base part 104 of the polishing roll. .When the screws 103 are retracted as de- Specification of Letters Patent.

gage the heads of, the screws 103.

scribed, -the compressed springs 105 force the sectors of the polishing roll outwardly on the pivot 100 until the said sectorsenv I Thus when the polishing roll becomes worn it may be adjusted to assume the correct po-.

sition in relationto the companion polishing roll for polishing the space bands.

As in my said former patent, one of the rolls should be yieldably mounted after the Patented May. 10, 1921. Application filed June a, 1917. Serial No. 176,542

manner disclosed in the said patent. This 1 .roll is the roll provided with the hinged segments and permits an adjustment of. the

diameterof the roll as will be readily under stood. By the means described it is evident that the'roll may be adjusted in diameter to takeup wear and thus a device is secured that isoflong life and, whileof very simple nature, is efficient in operation.

"Having thus briefly described my invention, its utility and'mode of operation, what 'I claim and desire to secure by Letters Patent of the United States is 1 1. In a space band polishing device, a polv ishing'roll formedof several segments pivoted to the base of the roll and means for I changing the diameter of the roll consisting of springs adapted to force the segments.

outwardly on their pivots and adjusting screws adapted to limit movement of the I said segments.

a spring for each segment carried by the hub member tending to force the segments 7 outwardly to increase the diameter of the roll, and adjustable means for each segment limiting the extent of movement thereof by each spring. I y

In testimony whereofI sign this specification.

JOHN LIST. I 

